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Question by Manco Capac · Feb 06, 2013 at 10:17 AM · particlesystemplay

Particle System not playing

Debug Console says:

NullReferenceException: Object reference not set to an instance of an object DamCtrl.Update () (at Assets/CarScene/Scripts/DamageScripts/DamCtrl.js:62)

DamCtrl.js (Clipped):

 var health : float;
 var smoke : ParticleSystem;
 
 function Start () {
     smoke = gameObject.GetComponent(ParticleSystem);
 }
 
 function Update () {    
 
     if(health <= 75 && health >= 55){
          smoke.Play();
     }
 }


Line 62 is "smoke.Play();"

What's missing??

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Answer by CodeMasterMike · Feb 06, 2013 at 10:27 AM

Looks like smoke is not valid.

Make sure that the Particle system is really found in your start function before you try to play the effect:

  if(smoke != null)
  {
   smoke.Play();
  }




Good luck!

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avatar image Manco Capac · Feb 06, 2013 at 01:46 PM 0
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ok, if I add this there is no error in the console... But I still can't get smoke to play :-/

avatar image CodeMasterMike · Feb 06, 2013 at 03:53 PM 0
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Thats probably because the code doesn't find the smoke effect.

If you run this as well, then you will get a console message if the smoke effect object is not found.

 if(smoke == null)
 {
   Debug.Log("Smoke is not found.");
 }

If it is not found, you need to check that you have set the particleeffect in the inspector, or however you set it in your project.

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